Disadvantages of Analogy Estimation
- Bias in the Estimation Process: Analogous Estimation is tolerant to bias as it heavily relies on historical data and past experiences. If previous efforts were inaccurately estimated or if there were unforeseen challenges, the estimation process may inherit those biases. This could lead to an overemphasis on historical factors, resulting in biased project effort calculations.
- Limited Applicability in Unique Projects: Analogous Estimation may be less applicable in projects with unique or uncommon requirements. In cases where the project involves tasks that significantly differ from previous projects, historical data may not accurately reflect the efforts required.
- Potential Ignorance of Subject Expertise: In certain situations, team pressure or political considerations may override project-specific calculations or insights from subject matter experts. The dependence on historical data may lead to overlooking the expertise of individuals who possess valuable insights into the unique aspects of the project. This can fail to account for critical project efforts.
Estimation by Analogy and Relative Sizing
Project Managers put a lot of time and effort to successfully deliver the project. What they need is a robust technique to estimate their project. In Project Management, Analogous and Relative-Size Estimation are popular techniques that allow us to predict the efforts required for the project tasks. Also, we can compare the efforts for new tasks with those of completed ones so that we can analyze our workflow efficiency and resource availability.
Table of Content
- What is Project Estimation?
- What is Estimation by Analogy?
- Advantages of Analogy Estimation
- Disadvantages of Analogy Estimation
- What is Estimation by Relative Sizing?
- Advantages of Relative-size Estimation
- Disadvantages of Relative-size Estimation
- Frequently Asked Questions on Estimation by Analogy and Relative Sizing – FAQs
- Conclusion
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